Matches in SemOpenAlex for { <https://semopenalex.org/work/W2056576103> ?p ?o ?g. }
- W2056576103 abstract "Transient absorption anisotropy of a polythiophene polymer in a thin film was studied on a femtosecond time scale. The anisotropy has a non-exponential decay on the sub-picosecond time scale, with a fastest component characterized by an $ensuremath{sim}40mathrm{fs}$ time constant. To simulate the anisotropy decay an incoherent energy migration model has been used. Comparison between the simulated and experimental kinetics enabled us to estimate the nearest-neighbor pair wise hopping time $({ensuremath{tau}}_{h}=1ifmmodepmelsetextpmfi{}0.1mathrm{}mathrm{ps}),$ the fraction of the interchain aggregates $(ensuremath{sim}10%)$ and the structural disorder of the polymer. The initial $ensuremath{sim}30mathrm{fs}$ anisotropy decay does not originate from incoherent hopping energy transfer but from some other relaxation among electronic excited states within a spectroscopic unit." @default.
- W2056576103 created "2016-06-24" @default.
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- W2056576103 date "2003-05-14" @default.
- W2056576103 modified "2023-10-18" @default.
- W2056576103 title "Ultrafast excitation transfer and trapping in a thin polymer film" @default.
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- W2056576103 doi "https://doi.org/10.1103/physrevb.67.205207" @default.
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